[Icom] Toyota firewall

[Jack B. Wexler]

I do the P.A. system for a charity 5/10K walk/run using a 100W (50 X 2)
car stereo amp with a 12V mic mixer. I use a cigarette lighter cord
(about 10" long) from a 9" color TV. The cord looks like about a #12 wire
and is fused at 7A and is attached to the amp and mixer by banana plugs.
The P.A. is on the air for about 3 hours and there is no appreciable heat
on the plug.
73, Jack KF6IFF

On Mon, 19 May 2003 21:46:30 -0700 Chris BONDE <ve7hcb@rac.ca> writes:
> I was not too explicit on what I meant by the following.
> 
> "I plan on using the power plugs, ie, the extra cigarette lighter 
> plugs to 
> run it.  I would like to remove the ash tray and use that area to 
> put the 
> face plate in.  Has anyone tried this?"
> 
> I would use the power plug not the cigarette lighter.  As I donot 
> smoke, 
> the ash tray with cigarette lighter is expendible.  The lid therefor 
> a good 
> thing to hide a faceplate, or, a small device.  The power plug is 
> marked 
> max 12V / 120W.  I think that it would handle a 50w TRx.
> 
> Chris opr VE7HCB
> 
> 
> At 10:09 AM 2003-05-19 -0500, you wrote:
> 
> >  It is not the 13.8V that is the problem.  It is the current drawn 
> through
> >these little adapters.  I would suggest that just for grins, you 
> take this
> >thing apart and examine the spring.  What size wire is this thing?  
> It sure
> >is NOT 10AWG wire. After a period of time, this little spring, with
> >sufficient current, gets warm.  Continued warm, with an occasional 
> hot,
> >means the spring begins to lose its tension.  After a period of 
> time, it
> >becomes a resistor.  Now, go to your radio and measure the 13.8V 
> under load
> >(key down) and see if you have 13.8.!  Would bet you are seeing 
> more like 10
> >or 11V.  Now, you can calculate the resistance value of your 
> spring.  3V at
> >maybe 5A..!!
> >
> >Nice low loss spring.!  No wonder your audio sounds horrible and 
> your HF
> >comments of sounding like you are FM'ing...!  Now do you understand 
> why
> >these things are not worth a tinkers #$^@ for a 100W HF system.!?
> >
> >OK...your system works fine off the lighter outlet.  You are 
> probably
> >drawing less than a couple amps.  This is ok, but don't press your 
> luck.
> >
> >Best be safe and find a way to get power from the battery.  In my 
> case, I
> >ran along the firewall and over the fender (inside the engine 
> cavity) down
> >the door sill leading edge.  Then into the passenger compartment 
> and back to
> >the trunk.  Took a little doing and words, but it is done.  Would I 
> do it
> >again, sure would.
> >
> >My Cig lighter plug is for charging the cell phone when needed.
> >Not radios..!
> >
> >73
> >
> >Bill, W0LPQ
> >----
> >Your Moderator: Dick Flanagan W6OLD, icom-owner@mailman.qth.net
> >Icom Users Net: Sundays, 1700Z, 14.315 MHz
> >Icom FAQ: http://www.qsl.net/icom/
> 
> 
> ----
> Your Moderator: Dick Flanagan W6OLD, icom-owner@mailman.qth.net
> Icom Users Net: Sundays, 1700Z, 14.315 MHz
> Icom FAQ: http://www.qsl.net/icom/
> 


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